/**
 * AdapterRegistry interface and implementation for @a5c-ai/agent-mux.
 *
 * @see 05-adapter-system.md §5
 */
import type { AgentName } from './types.js';
import type { AgentCapabilities, InstallMethod } from './capabilities.js';
import type { AgentAdapter, AgentAdapterInfo, InstalledAgentInfo } from './adapter.js';
/**
 * Registry of agent adapters. Manages discovery, detection, capability
 * queries, and plugin adapter registration.
 */
export interface AdapterRegistry {
    /** Returns metadata for all registered adapters. Synchronous. */
    list(): AgentAdapterInfo[];
    /** Detects all registered agents and returns installation status. */
    installed(): Promise<InstalledAgentInfo[]>;
    /** Detects whether a specific agent is installed. */
    detect(agent: AgentName): Promise<InstalledAgentInfo | null>;
    /** Returns the capabilities manifest for a specific agent. */
    capabilities(agent: AgentName): AgentCapabilities;
    /** Returns platform-specific installation instructions for an agent. */
    installInstructions(agent: AgentName, platform?: NodeJS.Platform): InstallMethod[];
    /** Retrieves the adapter instance for a given agent. */
    get(agent: AgentName): AgentAdapter | undefined;
    /** Registers a new adapter or replaces an existing one. */
    register(adapter: AgentAdapter): void;
    /** Removes an adapter from the registry. */
    unregister(agent: AgentName): void;
}
/**
 * Map-based implementation of AdapterRegistry.
 */
export declare class AdapterRegistryImpl implements AdapterRegistry {
    private readonly _adapters;
    private readonly _detectCache;
    /**
     * Registers an adapter as a built-in. Same as register() but marks
     * the source as 'built-in'.
     */
    registerBuiltIn(adapter: AgentAdapter): void;
    list(): AgentAdapterInfo[];
    installed(): Promise<InstalledAgentInfo[]>;
    detect(agent: AgentName): Promise<InstalledAgentInfo | null>;
    capabilities(agent: AgentName): AgentCapabilities;
    installInstructions(agent: AgentName, platform?: NodeJS.Platform): InstallMethod[];
    get(agent: AgentName): AgentAdapter | undefined;
    register(adapter: AgentAdapter): void;
    unregister(agent: AgentName): void;
    private _validateAdapter;
}